Segment Information - Revenues by Geographic Area (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Total revenues	$ 2,556,158	$ 2,417,179	$ 1,920,878
U.S. Customers [Member]
Segment Reporting Information [Line Items]
Total revenues	2,147,651	2,036,019	1,736,136
Non U.S. Customers [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 408,507	$ 381,160	$ 184,742